182 reputation
19
bio website jamesmoorecode.blogspot.com
location Seattle, WA
age
visits member for 4 years, 11 months
seen May 7 at 0:27

Aug
13
comment ZFS vs XFS
ZFS on Linux is available now (zfsonlinux.org)
Jun
17
comment Can you add two non-mirrored disks to a zfs pool?
3.2.0-40-generic #64-Ubuntu, but does it matter? I thought most zfs admin stuff is similar or identical across platforms.
Jun
17
comment Can you add two non-mirrored disks to a zfs pool?
@USDMatt - yes, that's exactly what I'm trying to do.
Jun
17
comment Can you add two non-mirrored disks to a zfs pool?
Can you guys be more specific about what's hard to understand? After thinking about it, I still can't figure out why it's not clear.
Sep
9
comment Best practices to set up laptop with wireless and wired interface/NIC over DHCP?
One is fast and one is slow. The fast one isn't always connected, though. From another machine to the laptop in question, it'd be nice to just connect to a single name and just get the fastest thing currently working.
May
6
comment How to have ZFS make snapshots of a directory only when files are changed?
You probably have to miss some changes. If you literally want to do a snapshot on every change, you'd have to create a snapshot every time a block was written.
Apr
12
comment ZFS: How do you restore the correct number of copies after losing a drive?
The problem is in @jlliagre's answer - the pool is dead if it loses any device. The fact that the pool still has enough ditto blocks doesn't seem to matter. Any way around that?
Apr
12
comment ZFS: How do you restore the correct number of copies after losing a drive?
Sure, but that's OK - I'd expect that status would just say that some files are lost. (OK clearly meaning "we've got something useful here", not "everything's fine"). Now I'm wondering why they even added the copies=N feature.
Apr
12
comment ZFS: How do you restore the correct number of copies after losing a drive?
OK, that's interesting. I assumed the opposite: obivously copies=N is a redundant configuration, but now I suspect that you're right and I'm wrong. Unfortunate that they don't also document that here: docs.oracle.com/cd/E19082-01/817-2271/gazgd/index.html
Apr
12
comment ZFS: How do you restore the correct number of copies after losing a drive?
"With a striped pool, you can only replace healthy devices" - reference, please? Nothing I see in the doc says that this is true. What exactly am I missing? And even if I am missing something that says I can't replace that drive - so what? I care about data. As long as there are multiple copies of the data, the right functionality is there.
Apr
11
comment ZFS: How do you restore the correct number of copies after losing a drive?
"There is no redundancy at the pool level so there is no way to replace the faulty disk by a new one." This doesn't seem relevant. Why do I care about redundancy at the pool level? copies=3 gives me redundancy at the file level. It sure seems like replacing the failing disk + scrub gets back to a good state.
Apr
11
comment ZFS: How do you restore the correct number of copies after losing a drive?
This directly conflicts with what @Redmumba says - and Redmumba provides links to code. Can you cite some sources for what you're saying? In particular, I'd love to see good citations for why you think copies=N isn't going to cope with whole device failure - that doesn't match with anything I've read.
Jan
19
comment Cooling Server Closet - No A/C Is Possible
People and silence are FAR more important than extending the life of the equipment. Suggesting headphones as a solution is just bizarre.
Dec
7
comment Block-level deduplication on Linux
See @jlliagre's answer - it's available now.
Sep
17
comment Samba and Snow Leopard — slow connects
Didn't do anything to improve it for me, unfortunately. Still having the problem.
Aug
22
comment Cygwin sshd on Windows 7 issue
Didn't help in my case: James@Greine:/var/log$ ls -ld /var/empty drwx------+ 1 cyg_server root 0 2010-05-11 07:34 /var/empty But I'm still getting the "/var/empty must be owned by root and not group or world-writable." message in the log and sshd isn't starting.